Cov txheej txheem:
Video: Dawb LED Kawm Nkhaus!: 5 Kauj Ruam
2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27
Xav Tau Lub Teeb Pom Kev
Kuv tau sim kho qee yam thiab kuv xav tau lub teeb pom kev zoo dua los txiav txim ib qho me me ntawm cov yas dub los ntawm lwm qhov nyob hauv qhov chaw raug kaw …
Hmoov zoo, Christmas yuav luag nyob ntawm no dua yog li kuv yuav ib qho pheej yig 1, 50 € garland ntawm 20 L. E. Ds. Cov lus qhia tau hais tias 2 x 1.5 volt "AA" hlwb uas kuv xav tias yog qhov txaus nyiam li Dawb LEDs xav tau ntau dua 3 volts: Ntawm kev tshuaj xyuas, tsis siv cov tshuaj tiv thaiv series, ib yam li 'pov tseg' (Ref.1) zoo, ok, tab sis qhov tseeb uas yuav tsis txaus?
Yog li, qhov ntawd ua haujlwm li cas?
Cov lus teb yooj yim yog tias lub roj teeb 1.5v ib txwm tuaj yeem muab txog 1.6 volts thaum tshiab thiab LE tau xaiv los kom muaj Vf qis ntawm 3 volts. Qhov kev tsim kho tshuab pheej yig no txhais tau tias tus kheej qhov ci ntsa iab tau hloov pauv thiab txo qis dua thiab tseem yuav tsis siv tag nrho lub zog muaj rau 0.9 qhov ntsuas qhov kawg piv txwv li ib feem peb; yam tsawg kawg koj tuaj yeem siv lawv rau T. V cov chaw taws teeb tom qab L. E. Ds tsis ua haujlwm!
Tab sis nyeem rau…
Kauj Ruam 1: Dawb LED Pib thiab Ua Haujlwm
Maxim muab APPLICATION NOTE 3070 piav qhia txog Txuj Ci thiab Dawb LED Qhia thiab Ua Haujlwm
www.maximintegrated.com/en/app-notes/index…
uas yog qhov tsis meej pem me ntsis tab sis qhov no muaj feem cuam tshuam: Dawb LEDs-Tseeb dawb-lub teeb-emitting LEDs tsis muaj. Xws li lub cuab yeej nyuaj rau tsim vim tias LEDs feem ntau tso tawm ib nthwv dej. Dawb tsis tshwm nyob rau hauv cov xim ntawm cov xim; es tsis txhob, paub dawb yuav tsum tau sib tov ntawm wavelengths.
Ib qho kev dag yog ua haujlwm los ua cov LEDs dawb. Blue-emitting InGaN cov khoom siv hauv paus tau npog nrog cov khoom hloov pauv uas tso tawm lub teeb daj thaum txhawb los ntawm lub teeb xiav. Qhov tshwm sim yog sib xyaw ntawm lub teeb xiav thiab daj uas pom los ntawm lub qhov muag zoo li dawb."
… thiab hais ntxiv …
Pom zoo:
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